57081282 has 16 divisors (see below), whose sum is σ = 120171360. Its totient is φ = 18025632.

The previous prime is 57081259. The next prime is 57081287. The reversal of 57081282 is 28218075.

It is not an unprimeable number, because it can be changed into a prime (57081287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250243 + ... + 250470.

It is an arithmetic number, because the mean of its divisors is an integer number (7510710).

Almost surely, 2^57081282 is an apocalyptic number.

57081282 is an abundant number, since it is smaller than the sum of its proper divisors (63090078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57081282 is a wasteful number, since it uses less digits than its factorization.

57081282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500737.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 57081282 is about 7555.2155495393. The cubic root of 57081282 is about 385.0329583299.

The spelling of 57081282 in words is "fifty-seven million, eighty-one thousand, two hundred eighty-two".